Programming & Computer Science Answers

The detailed study of an existing system when developing an information System is

referred to as:

A System Planning.

B System Analysis.

C Feasibility Study.

D System Design.

Which of the following algorithms is best for searching for an item in an ordered list of numbers?

A Binary search.

B Sequential search.

C Quick search.

D) Bubble search.

The difference between a linear array and a record is:

A An array is suitable for homogeneous data but the data items in a record can

be of different data types.

B A record may not have a natural ordering in opposed to linear array,

C Record entries can nest to form a hierarchical structure but a linear array

does not.

D) All of the above.

Which of the following data structures is best

used to store homogeneous data elements?

A Arrays.

B Records.

C Pointers.

D) None of the above.

Which of the following data Structures CANNOT be used to store non-

homogeneous data elements?

A Pointers.

B Records.

C Arrays.

D None of the above.

Which Of the following languages is suitable to use to program a device driver (e.g. a printer driver)?
A Java.
B Pascal.
C Assembly Language.
D C++

A process may be at any time running, ready or suspended. Which of the following
statements is true?
A A process will join the queue Of suspended jobs if, while it is running,
the time slice expires.
B A process is ready if it is waiting for an I/O device to become free
C A process is running if it is in memory, waiting for the process to become free.
D A process is suspended if it is waiting for an I/O device to become free.

An attribute in the context of a relational database may be defined as:
A Something about which data is held.
B A column of a table.
C A row in a table.
D A key field of a table.

A table in third normal form is one which:
A. Has only one primary key
B. Is linked to another table by means of a foreign key
C. Have no repeating fields
D. Contains no non-key dependencies

A table in third normal form is one which:

A. Has only one primary key

B. Is linked to another table by means of a foreign key

C. Have no repeating fields

D. Contains no non-key dependencies